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Univ. Paris-Saclay

Jean-Christophe Gabriel

Jean-Christophe P. Gabriel, PhD, HDR

Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Énergie

Laboratoire Innovation, Chimie des Surfaces Et Nanosciences

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Current positions:

  • Directeur de Recherche (Nanosciences) in CEA 

  • Co-Director of the Joint Laboratory CEA/NTU SCARCE in Singapore

  • Visiting Professor at the Nanyang Technological University of Singapore

Jean-Christophe P. Gabriel now leads an international research group delocalised on both CEA Saclay and Nanyang Technological University group. Members of the group in NTU are focussing on developping e-waste recycling process steps. In Saclay our efforts also investigate e-waste recycling but focus as well on nanomaterials, their synthesis, characterisation, processing and applications.


His group current fields of interest are the following:

  1. Waste recycling: we are developing tools and processes for impoving various wastes recycling to enable more economically viable waste processing. Our efforts in this field started in 2013 and focussed at the time on an integrated microfluidic lab-on-chip that enables much faster exploration of multidimensional phase diagrams of complex fluids. Such lab-on-chip devices integrate various sensors as well as characterizations methods (such as FTIR in hollow waveguides, or X-ray fluorescence). This work was first funded, from 2013 util 2018, by the advanced ERC project REE-CYCLE (PI = Prof. Thomas Zemb) that aims at developing new rare earth extraction/recycling processes, at least 10 times more efficient that current liquid-liquid extraction processes, where JCG is acting co-PI. Since then, within the SCARCE CEA/NTU joint laboratory in Singapore, we have further developped the microfluidic platform as well as expanded our efforts to other process steps in the recycling of e-waste (Printed Circuit boards - PCBs, plastics from e-wastes), such has:
    • PCBs dismantling and associated electronic component sorting;

    • Physical method based purification;

    • Critical metals recovery and purification;

    • Liquid-liquid and Solid-liquid hydrometallurgical recovery process steps development;

    • Use of supercritical fluid as a green solvent for e-waste recycling.

  2. Nanomaterials: In our laboratory, we synthesize and characterize low dimensionality materials (0, 1 and 2D), by all means necessary and available (from visual/microscopic observations to the use of synchrotrons for the structural investigations of materials). These materials can often be exfoliated/dispersed in solution leading to some complex/colloidal fluids, exhibiting a very wide range of fascinating behaviors.
  3. Integration:
    • Thanks to the awarded ANR Project 4WATER (2018) (see video of presentation below): we are elaborating new and cheap multi-target chemical sensor arrays for the continuous monitoring of groundwater quality. Using a microelectronic approach, the sensors will be based on functionalized nanomaterials and that will target various ions selected for their relevance as regards the quality of fresh water.
    • Thanks to the awarded ANR Project 2D-MEMBA (2021): we integrate nanomaterials for the making of less power-hungry membranes for the purification of water.

For more details on our research group look here.

Result highlights

In the NEWS


Dr. Jean-Christophe P. Gabriel is one of CEA’s Research Director, in the field of Nanoscience. Since September 2020, his French laboratory is located in CEA Saclay. He is also currently a visiting Professor at NTU where he serves as co-director of the NTU Singapore CEA Alliance for Research in Circular Economy (SCARCE), CEA's first joint laboratory outside French territory. There he directly manages a team of researcher in the field of e-waste recycling.

He first joined the French Alternative Energy and Atomic Energy Commission (CEA) in 2007 as CEA/LETI institute’s “Beyond CMOS” program manager as well as the business director of the academic - industry Caltech – LETI alliance, which led, years later, to the creation of the Startup Apix Technology.

From 2009 to 2016, he became deputy director of CEA’s Nanoscience program (budget: 1 M€/year). In parallel, from 2013 to 2018, he was co-principal investigator of the REE-CYCLE advanced ERC project (2013-2018), that aimed at developing new rare earth extraction/recycling processes, at least 10 times more efficient that current liquid-liquid extraction processes. In his laboratory in Grenoble, created in 2014, he was developing integrated microfluidic lab-on-chip that enable much faster exploration of multidimensional phase diagrams of complex fluids. Such lab-on-chip devices integrate various sensors as well as characterizations methods (such as FTIR in hollow waveguides, or Xray fluorescence).

Former student at the “Ecole Normale Supérieure” in Paris, he received his Ph.D. (1993), supervised by Dr. Patrick Batail, from University Paris-Saclay (formerly Orsay University) and his Habilitation from Grenoble-Alpes University (Formerly Joseph Fourier University). He completed his PhD training with two postdocs. The first in Risø National Laboratory, Denmark, under the supervision of Prof. Klaus Bechgaard, the second at the Material Research Laboratory a the University of California Santa Barbara, under the supervision of Prof. Anthony K. Cheetham.

His career is a mixed academic – industrial one. He indeed started his tenured career at CNRS (4 years at Jean Rouxel Institute, IMN, Nantes) followed by 6 years in the Californian startup Nanomix (nano.com), where he was one of the first employee. In this Berkeley spinoff he helped in the technology transfer of nanomaterials and carbon nanotubes technologies, helped raised $34 million of venture capital money and with his team was the first to put an integrated nanotube based electronic device on the market (a hydrogen sensor, in 2005). Since he left the company in 2007, Nanomix has marketed fast electronic diagnostic tools (Ebola, COVID-19 etc.) based on, among others, patents that he co-invented.

Jean-Christophe has published more than ~ 70 papers in international peer reviewed journal and is co-inventor on more than 45 patents and patent applications, dealing with nanomaterials (carbon nanotubes, graphene) applications (sensors, H2 storage) and waste recycling proceeses.

Other profiles:

Recent Publications


• "Dismantling of Printed Circuit Boards Enabling Electronic Components Sorting and Their Subsequent Treatment Open Improved Elemental Sustainability Opportunities." Ange A. Maurice, Khang Ngoc Dinh, Nicolas M. Charpentier, Andrea Brambilla, Jean-Christophe P. Gabriel, Sustainability 13(18), 10357 (2021).

• "Electrochemical approaches for the recovery of metals from electronic waste, a critical review"
Varun Rai, Daobin Liu, Dong Xia, Jean-Christophe P. Gabriel, Recycling 6(3), 53(2021) (Article Processing Charge waved).

• "First online X‐ray fluorescence characterization of liquid‐liquid extraction in microfluidics"
Ange A. Maurice, Johannes Theisen, Varun Rai, Fabien Olivier, Asmae El Maangar, Jean Duhamet, Thomas Zemb, Jean-Christophe P. Gabriel, Nano Select 2021, 1-12 (2021) .

• "Laser induced breakdown spectroscopy for plastic analysis"
Qiang Zeng, Jean-Baptiste Sirven, Jean-Christophe P. Gabriel, Chor Yong Tay, Jong-Min Lee, Trends in Analytical Chemistry, 116280 (2021).

• "Value-added products from thermochemical treatments of contaminated e-waste plastics"
Pallab Das, Jean-Christophe P. Gabriel, Chor Yong Tay, Jong-Min Lee. Chemosphere 269, 129409 (2021)

• "On-line spectroscopic study of brominated flame retardant extraction in supercritical CO2"
Dong Xia, Ange Maurice, Antoine Leybros, Jong-Min Lee, Agnes Grandjean, Jean-Christophe P. Gabriel, Chemosphere 263, 128282 (2021)


• "Destabilization of the nematic phase of clay nanosheet suspensions by polymer adsorption"
Karin El Rifaii, Henricus H. Wensink, Thomas Bizien, Jean-Christophe P. Gabriel, Laurent Michot, Patrick Davidson, Langmuir 36(42) 12563–12571 (2020)

• "Microfluidic lab-on-chip advances for liquid-liquid extraction process studies"
Ange Maurice, Johannes Theisen, Jean-Christophe P. Gabriel, Current Opinion In Colloid & Interface Science 46, 20-35 (2020)

• "A microfluidic study of synergic liquid–liquid extraction of rare earth elements"
Asmae El Maangar, Johannes Theisen, Christophe Penisson, Thomas Zemb, Jean-Christophe P. Gabriel, Phys. Chem. Chem. Phys. 22(10) 5449-5462 (2020)


• "Effects of porous media on extraction kinetics: Is the membrane really a limiting factor?"
Johannes Theisen, Christophe Penisson, Julien Rey, Thomas Zemb, Jean Duhamet, Jean-Christophe P. Gabriel, J. Memb. Sc. 486, 318-325 (2019)

• "Methods for dispersing carbon nanotubes for nanotechnology applications: liquid nanocrystals, suspensions, polyelectrolytes, colloids and organization control"
S Manzetti, JCP Gabriel, International Nano Letters 9 (1), 31-49 (2019)


• "Molecular simulation of binary phase diagrams from the osmotic equilibrium method: vapour pressure and activity in water ethanol mixtures"
M. Bley, M. Duvail, P. Guilbaud, C. Penisson, J. Theisen, J.-C. Gabriel and J.-F. Dufrêche, Molecular Physics 116 (15-16) (2018) 2009-2021

• "Determining the partial pressure of volatile components via substrate-integrated hollow waveguide infrared spectroscopy with integrated microfluidics"
V. Kokoric, J. Theisen, A. Wilk, C. Penisson, G. Bernard, B. Mizaikoff, J.C.P. Gabriel, Analytical Chemistry, Anal. Chem. 90(7) 4445–4451 (2018)

• "Water activity measurement of NaCl/H2O mixtures via substrate-integrated hollow waveguide infrared spectroscopy with integrated microfluidics"
C. Penisson, A. Wilk, J. Theisen, V. Kokoric, B. Mizaikoff, J.C.P. Gabriel, Biotech, Biomaterials, and Biomedical: TechConnect Briefs 198-201 (2018), CRC Press, ISBN 978-0-9988782-4-9. Proceeding of Nanotech 2018, May 13-16, 2018 Anaheim, CA, USA.

• "Isotropic, nematic, and lamellar phases in colloidal suspensions of nanosheets"
P. Davidson, C. Penisson, C. Doru, J.C.P. Gabriel, Proc. National. Acad. Sc. 201802692 (2018)

Most Cited Publications and Patents (100+ citations, after google Scholar)*

* citation numbers last updated on 24/08/2021






Electronic detection of specific protein binding using nanotube FET devices

A Star, JCP Gabriel, K Bradley, G Grüner

Nano letters 3 (4), 459-463



Label-free detection of DNA hybridization using carbon nanotube network field-effect transistors

A Star, E Tu, J Niemann, JCP Gabriel, CS Joiner, C Valcke

Proceedings of the National Academy of Sciences 103 (4), 921-926



Gas sensor array based on metal-decorated carbon nanotubes

A Star, V Joshi, S Skarupo, D Thomas, JCP Gabriel

The Journal of Physical Chemistry B 110 (42), 21014-21020



Flexible nanotube electronics

K Bradley, JCP Gabriel, G Grüner

Nano Letters 3 (10), 1353-1355



Nanoelectronic carbon dioxide sensors

A Star, TR Han, V Joshi, JCP Gabriel, G Grüner

Advanced Materials 16 (22), 2049-2052



Observation of nematic liquid-crystal textures in aqueous gels of smectite clays

JCP Gabriel, C Sanchez, P Davidson

The Journal of physical chemistry 100 (26), 11139-11143



Chemistry of hexanuclear rhenium chalcohalide clusters

JCP Gabriel, K Boubekeur, S Uriel, P Batail

Chemical reviews 101 (7), 2037-2066



Interaction of aromatic compounds with carbon nanotubes: correlation to the Hammett parameter of the substituent and measured carbon nanotube FET response

A Star, TR Han, JCP Gabriel, K Bradley, G Grüner

Nano letters 3 (10), 1421-1423



Swollen liquid-crystalline lamellar phase based on extended solid-like sheets

JCP Gabriel, F Camerel, BJ Lemaire, H Desvaux, P Davidson, P Batail

Nature 413 (6855), 504-508



Charge transfer from ammonia physisorbed on nanotubes

K Bradley, JCP Gabriel, M Briman, A Star, G Grüner

Physical review letters 91 (21), 218301



New trends in colloidal liquid crystals based on mineral moieties

JCP Gabriel, P Davidson

Advanced Materials 12 (1), 9-20



Sensitivity control for nanotube sensors

K Bradley, PG Collins, JCP Gabriel, G Gruner, A Star

US Patent 6,894,359



Nano-electronic sensors for chemical and biological analytes, including capacitance and bio-membrane devices

K Bradley, YL Chang, JCP Gabriel, JL Passmore, S Skarupo, E Tu, ...

US Patent 8,154,093



Mineral liquid crystals

P Davidson, JCP Gabriel

Current opinion in colloid & interface science 9 (6), 377-383



Electrocrystallization, an invaluable tool for the construction of ordered, electroactive molecular solids

P Batail, K Boubekeur, M Fourmigue, JCP Gabriel

Chemistry of materials 10 (10), 3005-3015



Short-channel effects in contact-passivated nanotube chemical sensors

K Bradley, JCP Gabriel, A Star, G Grüner

Applied Physics Letters 83 (18), 3821-3823



Influence of mobile ions on nanotube based FET devices

K Bradley, J Cumings, A Star, JCP Gabriel, G Grüner

Nano Letters 3 (5), 639-641



Ammonia nanosensors, and environmental control system

M Briman, C Bryant, YL Chang, JCP Gabriel, SC Gandhi, BN Johnson, ...

US Patent 8,152,991



The measurement by SAXS of the nematic order parameter of laponite gels

BJ Lemaire, P Panine, JCP Gabriel, P Davidson

EPL (Europhysics Letters) 59 (1), 55



Modification of selectivity for sensing for nanostructure device arrays

JCP Gabriel, PG Collins, K Bradley, G Gruner

US Patent 6,905,655



Quasi-Langmuir–Blodgett thin film deposition of carbon nanotubes

NP Armitage, JCP Gabriel, G Grüner

Journal of applied physics 95 (6), 3228-3230



Remotely communicating, battery-powered nanostructure sensor devices

JL Passmore, JCP Gabriel, A Star, V Joshi, S Skarupo

US Patent 7,522,040




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